9 Volt batteries power some of the most important devices in your world - from smoke and carbon monoxide detectors, to home security systems, to medical devices. These versatile cells are also common in wireless audio equipment and radios. Make sure you've got an Energizer where it counts.

These Energizer max 9v cells are recommended for moderate drain devices such as baby monitors, clock radios, and garage openers. Low-drain devices such as smoke detectors and alarms will perform best Energizer's gold line (linked below) which are tailored to maintain their charge over time.